Gene to Protein

Gene to Protein - Gene to Protein Gene expression: Process...

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Gene to Protein Gene expression : Process by which DNA directs protein synthesis TWO Stages Transcription : RNA synthesis on a DNA template Translation : Polypeptide synthesis using the genetic information encoded on mRNA
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Gene: Domain of DNA coding for messenger RNA or mRNA, which codes for polypeptide chain, or for other RNA molecules Transcription: synthesis of RNA under the direction of DNA by complementary base pairing Translation: synthesis of a polypeptide, which occurs under the direction of mRNA and using ribosomes (rRNA) and tRNAs
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Flow of Genetic Information v Prokaryote: RNA product can be used directly for translation v Eukaryote: Transcription and translation are separate Occurs in separate compartments Ø Transcription in nucleus Ø Translation in cytoplasm
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Coupled Transcription and Translation in Prokaryotes Simultaneous translation during transcription Nascent polypeptide : polypeptide during translation e e
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How many nucleotides are needed to specify twenty amino acids? There are only FOUR different nucleotides
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Gene to Protein - Gene to Protein Gene expression: Process...

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